| Title |
Gysel Power Divider/Combiner for Wideband and Second Harmonic Suppression |
| Authors |
정태환(Tae-Hwan Jeong) ; 김연수(Yeon-Su Kim) ; 장유나(You-Na Jang) ; 안달(Dal Ahn) |
| DOI |
https://doi.org/10.5370/KIEE.2026.75.6.1304 |
| Keywords |
Broadband; Gysel Power Divider/Combiner; Second Harmonic Suppression; Stub Band Pass Filter |
| Abstract |
This paper proposes a gysel power divider/combiner structure capable of achieving wideband operation and second harmonic suppression. The proposed structure incorporates a stub-based bandpass filter design. Furthermore, heat dissipation characteristics are improved through vias inserted to implement short-circuited stubs. By achieving impedance matching at the center frequency of 3GHz. the proposed structure realizes a wide bandwidth ranging from 2.5GHz to 3.5GHz. Additionally, the characteristics of the short-circuited stubs are utilized to suppress the second harmonic at 6GHz. Experimental results demonstrate a return loss of less than ?18dB and a power division level of approximately ?3.2dB within the operating band, while achieving harmonic suppression of less than ?35dB at 6GHz |